Numbering stamp for photographic-printing machines



l @513,435 C. F. SPEIDEL ET AL NUMBERING STAMP FOR PHOTOGRAPHTC PRINTING MACHINES Dec. 9 H924 Filed Feb. lO' 1923 Patented Dec. 91, 1924.

` UNITED STATES PATENT OFFCE CHARLES F. SPEDEL AND JOHN CHRSTIE, OF ROCHESTER, NEW YORK, ASSIGNOES TO EASTMAN KODAK COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK. Y

NUMBEBIDTG? STAMP FO'R PHOTOGRAPHIC-PRINTING MACHINES.

Application filed February 10, 1923.

.To all wlmi/i t may concern.:

Be it known that we, CHARLES F. Srnimii. and floiiN Gi-inis'rir., citizens of the United, States oi':` America, residing at Rochester,

in the county ot Monroe andState of New York, have invented certain new and usetul Yimprovements in Numbering' Stamps for .Photographic-Printing Machines, of which the following is a full, clear, and exact speci- 0 lication.

This invention relates to photography having particular reference to the numbering stamps used as aI partot the complete photographic printing machine. It has for its object to provide a metallic numbering stamp which is sufficientlyv resilient in its action to work successfully upon a printing machine. Another object is to provide a resilient mounting` for the stamp, and to provide a mount upon which the entire stamp may be swung so that an operator may view the type when necessary. A ur ther object is to provide a combined rigid and resilient type member so that each member is individually resilient. A. further object is to provide a convenient number changing mechanism. Other objects will appear hereinafter from the following specilication, the novel features being :io pointed out in the claims at the end of the specification.

The problem of providing a suitable numbering stamp for a photographic printingl machine is much more diliicult than that of .T25 providing` a satisfactory disk stamp because oil the conditions under which it is used.

For a printing machine the stamp is usually mounted on the top of a platen which has a paper contacting face which is compressible, thus the distance from the top to the bottom of the platen varies thro-ugh wide limits. obviously increasing the difficulty oly mounting a stamp in -position to give good contact. The stamp must unction on the back cfa sheet of photographira-lly sensitized paper, the emulsion side ot which is highly sensitive to pressure so that too great pressure on the stamp may cause pressure markings on the developed print.

,50 Moreover, asVA the printing paper and negative lie upon a glass printing panel undue pressure may also injure thc glass. The printing paper varies in thickness within :wide limits and the negative may be on serial No. 618,379.

thin or thick film or upon a glass plate, and as one or more masks may also be used, the total thickness of the pile upon the top ot which the stamp print-s its legend may also vary considerably.

1With all these variables it is necessary to secure a firm but light contact to secure legible printing which does not in any way injure or dent the paper and mar the resulting print. Flexible rubber type works satisfactorily where proper Contact can be secured, but the life of such type is short and requires constant replacements, and its resiliency makes it ditlicult to retain accuracy of dimensions for any length of time. 7e have provided astamp made chiefly of rigid materials at the wearing points and yet having resilient qualities due to construction, as will be hereinafter fully described.

In the drawings in which like reference characters denote like parts throughout:

Fig. l is a perspective view otu a printing stamp` constructed in accordance with and illustrating one embodiment of my invention; being shown in proper relation to parts of a printing machine;

Fig. 2 is a plan view of the stamp and mount;

Fig. 3 is a section on line lll-HI o" Fig. 2;

Fig t is a section on line IVlV ot Fig. 2; and

Fig. 5 is a detail side elevation ot one ol the type disks.

In the drawing we have shown only a porA tion of a photographic printing machine,

illustrating such parts as will be necessary.' for an understanding of the application ot our invention to a printer.` VThe stamp l is mounted upon a `hinged member 2, having d one section 3 fastened to the platen l ol' the machine. In this case the platen #i is carried on each side by a pair ot parallel links 5, 5 pivoted tothe platen at 6, 6 and to a support 7 at S, 8. Support 7 is Afastened to the cabinet 9, which carries the usual glass prin( ing panel l0 under which there is the usual printing and pilot lamps which are not shown. The platen t is moved upon links 5, 5 parallel to the printing panel lO-by means oi' an operating handle 11, connected to side arms l2 one shown) each of which is slotted at 13 to receive a pin la carried by iii increased "as the platen approa'chespanel 10.

Each arm is pivoted at to supportv 7,so

thatfrby'drawing handler-y 11.' :forward ythe `platemislowered upongthe paper D'onfthe printing panel 10. In this instance platen 4 is provided with a plate 16 faced with felt 17, the plate-lboingspringl'pressed'from platT en 4, these parts being to assist in obtaining a firm and even pressure on the xpaper'P.J

The printing stamp 1f consists. of preferably adie-castcasing 1S having-lugs `19 extending to the sides, aperturedat lins 21ca-rried`by` the "hinged member Q'pass 'through these apertures and are moire-led by springs 23. As the base exlends throughthe opening 'oilnenb'er 2', `it can 'be seen 'thatispringsf-.QB "tiend"to retain the llugs 19" against plate 2,' but they "permit fthe casing to move a limited f distance 'from 'it `and also allowfor a lrocking movemennas it is,of"course, possible -to compress one spring more than the other. Thus the casing is resiliently carried byhingedfmeinber 2.

A shaft' 26 extendsbetween thesides 24, 24orming the base oftherasing This i shaftsupports a plurality oi? 'type disks 27,

'here showin as `four. These disks are :equipped j'With the usual j characters :28' on their peripheries, and with the usual moving ratchet 29. Our invention includes the structure used 'to resilientlyf mount lthese disks, that fis, interposing an annularresilient mem- Vber 30, preferably rubber, between thev annufill lar character "bearing disk' 27 and the annular "bearing member 31 which `'slides :on shaftLZG.

A series of Ilatches-'321011 shaft contact` with the movingl ratchets'QQ, under the impulse of .spring fingers 84. This structureinthe Well known manner-,causing the n'uinber to advance bygone at each movement *ci* the yolef.' 'A coiledspring` 40"(Flig. 8) normally holds the yolein the: position v`shown, in full lines, 4.

The frontjpart 41 'ofthe casingjlv isprovided Vwith a bearing`42, in which* there slides a plunger 43 4with" alingerjportion44 on 'the upper end,VV and 'a knob 44 4"on"tir-louer end, the direction or' lmovement 'o'i` this rod "being at substantially vrright angles to shaft 916.' Knob f44'engages a'crossbar 45 `onfthe "yoke 35, and by depressinglfinger portion44 'the yoke is mov`ed,thuschanging the numer- 'made by thecharacters 28. The hllngedmember carryingthe nrun- Y baring sta-mp is coi'rnejcted tofpartby al ""pintle "45, about which' 'there "are coiled `pressed toward yratchfets 29 r llns bar carries a `series of springs. 46=Ltending to\"hold"nrenrber 2 against theplaten 4 1n imposition in Whlclrthe openingpractically registers With a similar l:opening `@in ftheyfpilaten'! 4through u which :the

fst-amp; operates. 'LAi'ftuinfbuckle 47l-is for holding member 2 against thegfp-laten.. i dlVhen an operator desires to see the characters,

'Q8-'rest 'upoirairin'king pad suppdrtechby a bracket '50. y

"Springs 23 :tend to properlyposition the stamp" casing asa whole'with Aa'espect-"to the p paper, VWl'iich' :may vary fconsiderabl-y in thickness, and th'efiiexible annularmembers "80 "insure Heaeh` individual f. typo carrying member being 'broughtinto firincontact with thek paper so that a numeral M 'may "be printed ythere'on Without 'undue pressure or mari-ing the sensitive paper. p

mHaving thus 'descr1b`ed"`our iinventron,

what `We claim asnew "and'idesire -to secure by Letters tent/is 41. In a "photographic printing machine, vthe'combination with" a` platen adaptedw move to and from an operative position' in Acontact -With a sheet roi*printing paper, of

a printing st-amp, andahingedjcarrierfor the printing stamp attz'tch'ed'tofthel platen, said `printing`sta1np being mounted upon the hingedcarrier. i

I 12. A devicel as called/.fior in iclaim 1 in which the` hingedcarrier is spring held "against the platen.

fl-Ldevic'e as cal'ledior liii-claim 1 in which' 'the hii'iged carrier may belatched 'against the platen. Y

4.' In a "photographic'printing machine, the combination lwith a .platenndaptedto move to and "from an (,)peiiative position in Contact witlfiafsheet of printing, papenof a printing stanjlp, c'onni'rising a rigidcasing,

y a "resilient mounting 'between said "casing and said platen, rigid type carrying membersmounted 'in saidcasing., thel resilient 'mountingzbetween the f'casing and the platen permitting movement the 'former With 'respect zto the latter aslthe latter lowered upon 'the printing paper.

5. y-In a photographic printing machina the combination"with an apertured platen Vadapted towmove to and 'from `an 'operative 'position in contact/With a sheet'oi paper, oi:A a printing stamp, 'and a fhinge having a pintle, one part 'ofthe'hingeicarryingthe printing stamp land the *otherpartfbeing affixed to the platen ofthe machine, printing characters 'carried' by the stamp extending intothe -aperturcof the platen, the

.printing `characters being exposed'to View byswingmgjthe stampjmounted onraipart 'of Jthe hinge about 4thehin'ge pint-le.

(5. In a photographie printing machine, the combination with an apertured platen adapted to move to and from an operative position in Contact with a sheet of paper, of an apertured carrier hinged to the platen and a printing stamp supported by the hinged carrier being adapted to extend through the apertures in the platen and carrier, whereby a part of the stamp will contact with the paper ltogether with the platen.

7. An apparatus as called for in claim 6 in which the stamp is supported upon the -arrier by means of springs which permit a limited rocking movement in all directions.

S. In a photographie printing machine,the combination with a platen adapted to be moved into Contact with a sheet of paper at one extent ot its movement, of a printing stamp easing resiliently mounted thereon, rigid type carrying members carried by the stamp casing, a resilient mount for each type carrying member for supporting it in the stamp, the resilient mounting of the stamp easing aligning this part properly when the platen is lowered into Contact with the paper, and the individual resilient mounts for the type carrying members properly aligning the printing members whereby iirm and even Contact between the type carrying members and the paper is insured.

9. In a printing stamp, the combination with a rigid rotatable annular member carrying characters around its periphery, of a shaft for supporting` said member, and a resilient annular member located between the rigid annular member and the shaft.

10. In a printing` stamp, the combination with a type `carrying disk comprising a rigid annular member, of a coro for said resilient band of material between the type bearing member and the supporting shaft, whereby each of the type bearing members is individually movable to a limited degree.

12. A type disk for printing stamps inoluding a metallic annular type bearing member supported in its entirety by an annular rubber member.

13. A type disk for printing stamps oomprising an annular metallic type carrying member, an annular metallic supporting member separated by an annular rubber member, permitting limited movement of one metallic part relative to the other.

14. In a printing stamp, the combination with a stamp casing, lugs extending from the easing, a support, pin and aperture Connections between the lugs and the Support, and springs surrounding the pins eX- erting a pressure normally tending to hold the printing stamp casing to the support, but permitting a rocking movement of the casing relative to the support.

Signed at Rochester, New York, this 7th day of February, 1923.

CHARLES F. SPEIDEL. JOI-IN CHRISTIE. 

